QUESTION 71You need to display the “miles” unit description after the distance in the GetLog view. Which line of code should you use to replace line GL21? (Each correct answer presents a complete solution. Choose all that apply.)

QUESTION 72Hotspot QuestionYou need to ensure that only valid parameters are passed to the EditLog action.How should you build the route? (To answer, select the appropriate options in the answer area.)Answer: Case Study 2 – Shopping Web Application (QUESTION 73 – QUESTION 87)For help on how to answer the questions, click the Instuctions button on the question screen.BackgroundYou are developing an online shopping web application.Business Requirements– A user is not required to provide an email address. If a user enters an email address, it must be verified to be a valid email address.– Information about the first product on the product page must fade out over time to encourage the user to continue browsing the catalog.– Administrators must be able to edit information about existing customers. .– Administrators also must be able to specify a default product on the product page.Technical RequirementsGeneral:– The web store application is in a load-balanced web farm. – The load balancer is not configured to use server affinity.– The web store application is an ASP.NET MVC application written in Visual Studio 2012.Products:– The value of the productId property must always be greater than 0.– The Products page for mobile devices must display to mobile users.– The Products page for desktop devices must display to desktop users.Storage:– The data must be stored in a serialized XML data format.– Serialized objects must be schema-independent.Exception handling:– Exceptions originating from IIS must display a page with support contact information.– Some page links expire, and users who access these links encounter 404 errors.– Exceptions must be logged by using the WriteLog method of the Utility class.Browser and device support:– The application must support image format conversions from .bmp to .jpeg for mobile devices.– The application must support image format conversions from .bmp to .png for desktop devices.Application StructureQUESTION 73You need to ensure that new customers enter a valid email address. Which code should you use? (Each correct answer presents part of the solution. Choose all that apply.)

A. Option AB. Option BC. Option CD. Option D

Answer: AD

QUESTION 74You need to implement the requirements for handling IIS errors.What should you do?

A. Option AB. Option BC. Option CD. Option D

Answer: A

QUESTION 75You need to add a method to the ProductController class to meet the exception handling requirements for logging. Which code segment should you use?

A. Option AB. Option BC. Option CD. Option D

Answer: A

QUESTION 76You are designing a Windows Communication Foundation (WCF) service that uses the Product class. You need to update the class to meet the storage requirement. What should you do? (Each correct answer presents part of the solution. Choose all that apply.)

A. Mark the Product class with the DataContract attribute.B. Mark the public members of the Product class with the DataContractFormat attribute.C. Mark the Product class with the CollectionDataContract attribute.D. Mark the public members of the Product class with the DataMember attribute.

Answer: ADExplanation:So as of .NET 3.5 SP1, you don’t have to add data contract or data member attributes anymore – if you don’t then the data contract serializer will serialize all public properties on your class, just like the XML serializer would.HOWEVER: by not adding those attributes, you lose a lot of useful capabilities:– without [DataContract], you cannot define an XML namespace for your data to live in– without [DataMember], you cannot serialize non-public properties or fields– without [DataMember], you cannot define an order of serialization (Order=) and the DCS will serialize all properties alphabetically– without [DataMember], you cannot define a different name for your property (Name=)– without [DataMember], you cannot define things like IsRequired= or other useful attributes– without [DataMember], you cannot leave out certain public properties – all public properties will be serialized by the DCS

QUESTION 77An advertising campaign was recently launched. Some of the ads contain a link to products that no longer exist or have IDs that have changed. You need to ensure that all product links display a product. Which code segment should you use to configure the route?

A. Option AB. Option BC. Option CD. Option D

Answer: A

QUESTION 78You need to modify the application to meet the productId requirement.Which code segment should you use?

A. Option AB. Option BC. Option CD. Option D

Answer: CExplanation: Scenario: The value of the productId property must always be greater than 0.Note: The Contract.Requires(Of TException) method specifies a precondition contract for the enclosing method or property, and throws an exception if the condition for the contract fails.Syntax:‘DeclarationPublic Shared Sub Requires(Of TException As Exception) ( _ condition As Boolean _) Type ParametersTExceptionThe exception to throw if the condition is false.ParametersconditionType: System.BooleanThe conditional expression to test.

QUESTION 79You need to implement the business requirements for managing customer data. What should you do? (Each correct answer presents part of the solution. Choose all that apply.)

A. Add a class named CustomerController to the Controllers folder. Then add a method named Edit to the class.B. Create a new controller named Administration in the Controllers folder. Add an action named EditCustomer to the controller.C. Add a folder named Customer to the Views folder. Then create a view inside this folder named Edit.aspx.D. Create a new folder named EditCustomer to the Views folder. In the new folder, create a new file named Administration.aspx.

Answer: ACExplanation:We could annotate Edit method with Authorize attribute to make sure that only administrator can edit Customers.

QUESTION 80When users attempt to retrieve a product from the product page, a run-time exception occurs if the product does not exist. You need to route the exception to the CustomException.aspx page. Which method should you add to MvcApplication?